TiO2 (rutile) belongs to the tetragonal crystal system.
Chemical properties and uses
Titanium dioxide (TiO2) is an inorganic compound with extremely stable chemical properties and acidic properties. It is an amphoteric oxide with stable chemical properties and is non-toxic. It is widely used in coatings, plastics, papermaking, printing inks, chemical fibers, rubber, cosmetics and other industries. Titanium dioxide has a high melting point and is also used to make refractory glass, glazes, enamels, clay and high-temperature resistant experimental utensils.
Crystal structure
The crystal structure types of titanium dioxide include rutile, anatase and brookite. Among them, rutile and anatase belong to the tetragonal crystal system. Rutile crystals are slender, prismatic, and usually twinned; anatase is generally an approximately regular octahedron. Rutile has a smaller unit lattice, has greater stability and relative density, has a higher refractive index and dielectric constant, and has lower thermal conductivity.